Finding the Fourth Proportional to 64,769,786.20, 97,012,961.70 and 56,266,730.20
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Solution
The fourth proportional to 64,769,786.20, 97,012,961.70 and 56,266,730.20 is: 84,276,982.56
Step by Step Solution
- Step 1: Write the proportion equation
64,769,786.20 : 97,012,961.70 = 56,266,730.20 : x - Step 2: Convert to fraction form
64,769,786.20/97,012,961.70 = 56,266,730.20/x - Step 3: Cross multiply
64,769,786.20x = 97,012,961.70 × 56,266,730.20 - Step 4: Simplify right side
64,769,786.20x = 5,458,602,141,876,834 - Step 5: Solve for x
x = 5,458,602,141,876,834/64,769,786.20 - Step 6: Final answer
x = 84,276,982.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.